Water-tube xboiler



1. SNEDDON.

WATER TUBE BOILER.

APPLICATION FILED JULY 8' 1916.

I Patented Oct. 14,1919.

. Q 5x3- i -4- E H E E IN VEN TOR.

BY //Zu1 g ATTORNEYS.

barren oils-arcs.

JAMES P. sunnnon, or Ba onne, new .rensnv, ASSIGNOR *ro THE sesoocx &WILCOX QOMPANY, on BAYONNE, new JERSEY, a CORPORATION on new a JERSEY.

WATER l U-BE semen.

aim-curing;

Application filed July a. 1916.

To (ZZZ whom it may concern Be it known. that 1, JAMES P. Srzeonou acitizen of the United States residing at Bayonne, in the county ofHudson and State of New Jersey, have invented certain new and usefulImprovements in l l ater-Tube Boilers, of which the following is aspecification.

My invention relates 'to'water tube boilers.

outlet. The invention is especially adapted for boilers which are inservice and have a steam outlet connection from the middle drum, as thesteam may be led from the rear drum without altering the steamconnections leading from the boiler.

The invention will be understood by reference to the accompanyingdrawings in which Figure 1 is a vertical longitudinal section showingsullicient of the parts of a boiler to explain the invention; Fig. 2 alongitudinal section through the rear steam and water drum; Fig. 3 asimilar view through the middle steam and water drum;

and Fig. 41 a view illustrating a slight modification. Similar referencenumerals indicate similar parts in the several views. I

Referring to the drawings the numerals 1, 2 and 3 designate the frontmiddle and rear transverse steam and water drums of a Stirling boiler.These drums are con-- nected by banks of tubes 4, 5 and 6 to a mud drum.Baliiing shown at '2', 8 and is arranged to direct the gases, risingfrdin the furnace 10, in serial, passes over -the.

banks to the otltake 11. The water spaces of the drums 1 and 2 areconnected by circulators 12. In the modification shown in Fig.4eirculators 13 also connect the water spaces of the drums 2 and 3. Inthe form shown in Fig. 1 the circulators 13- are omitted. The steamspaces of the drums 1 and 2 are connected by circulators 141, and

Specification of Letters Patent.

Patented Get. 14, 1915?.

Serial No. ioaoea.

the steam spaces of drums 2 and 3 are connected by circulatorslS.

In the steam space of the rear drum, and near the ends of the drum, areplaced dry pipes 16 to which are connected circulating nipples 17 whichlead to a collecting pipe 18 in the steam space oi the middle steam andwater drum The steam is discharged through the outlet connection 19,which is located in the usual position on the middle steam and waterdrum and leads from the collecting pipe 18 extending longitudinallythrough the drum 2, the pipe 18 being closed against entrance of steamdirect from the drum :2. The collecting pipe 18 is provided with a drainpipe 20 through which any water pocketed in the collecting pipe may bevdischarged when the boiler is started up.

In the described arrangement the steam from the front steam and waterdrum. 1 is taken through the cireulators 14: to the mid dle steam andwater drum 2 and from the latter istaken through the circulators 15 tothe rear steam and water drum. From the drum 3 the steam passes throughthe circulating nipples to the collecting pipe 18 from which it isdischarged throughithe outlet connection.

The feed water is delivered to the rear steam and water drum through apipe 21 which discharges into a trough What I claim and. desire tosecure by Letters Patent of the. United States is 1*- 1. A water tubeboiler'having three transverse steam and water drums connected by banksof tubes to a transverse water chaniber, steam and water circulatorsconnecting the steam and water drums, a dry pipe near' each end of oneof the steam and water drums. a steam collecting plpe in one-of theother steam and water drums, nipples.

connecting the said dry pipes with the ends Car of the collecting pipe,and a steam outlet connection from said collecting pipe.

3. A water tube boiler having three transverse steam and Water drumsconnected by banks of tubes to a transverse Water chamber, steam andwater circuletors connecting the steam and Water drums, the steamcirdrum, nipples connecting said dry pipes with the ends of saidcollecting pipe, and esteem outlet connection for said collecting pipe.

In testimony whereof I have hereunto signed my name in the presence oftwo sub scribing Witnesses.

JAMES P; SNEDDON.

Witnesses:

A. N. Lewes, M. E. HAMLIN,

